The synthesis of vanadium oxide nanotubes containing phosphorus (VPOx-NT) is described. A mixture of V2O5.nH2O gels, phosphoric acid and hexadecylamine was heated under hydrothermal conditions at 180°C for 7 days. The VPOx nanotubes were characterized by X-ray diffraction, scanning and transmission electron microscopy, 51V and 31P solid state NMR. In-situ experiments were performed in order to get a better understanding of the mechanism of these nanotubes formation.
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The authors would like to thank Pr. K. J. Rao (I.I.S. of Bangalore, India) for helpful discussions concerning the mechanism of nanotubes formation and Dr B. Alonso (CRMHT, Orléans, France) for his help in the solid state NMR spectra acquisition and interesting conversations on the project.
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Jaber, M., Steunou, N., Azaïs, T. et al. Vanadium Oxide Nanotubes: New Synthesis Route and Mechanism of Formation. MRS Online Proceedings Library 847, 460–466 (2004). https://doi.org/10.1557/PROC-847-EE9.24